/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2012, by Object Refinery Limited and Contributors.
*
* Project Info: http://www.jfree.org/jfreechart/index.html
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
* [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
* Other names may be trademarks of their respective owners.]
*
* -----------------------------
* CandlestickRendererTests.java
* -----------------------------
* (C) Copyright 2003-2008, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* Changes
* -------
* 25-Mar-2003 : Version 1 (DG);
* 22-Oct-2003 : Added hashCode test (DG);
* 17-Aug-2006 : Strengthened testEquals() and added testFindRangeBounds()
* method (DG);
* 05-Mar-2007 : Added new field to testEquals() (DG);
* 08-Oct-2007 : Added tests for new volumePaint field (DG);
* 22-Apr-2008 : Added testPublicCloneable() (DG);
*
*/
package org.jfree.chart.renderer.xy;
import org.jfree.chart.util.PublicCloneable;
import org.jfree.data.Range;
import org.jfree.data.xy.DefaultOHLCDataset;
import org.jfree.data.xy.OHLCDataItem;
import org.jfree.data.xy.OHLCDataset;
import org.junit.Test;
import java.awt.Color;
import java.awt.GradientPaint;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectInputStream;
import java.io.ObjectOutput;
import java.io.ObjectOutputStream;
import java.util.Date;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotSame;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;
/**
* Tests for the {@link CandlestickRenderer} class.
*/
public class CandlestickRendererTest {
private static final double EPSILON = 0.0000000001;
/**
* Some checks for the constructor.
*/
@Test
public void testConstructor() {
CandlestickRenderer r1 = new CandlestickRenderer();
// check defaults
assertEquals(Color.green, r1.getUpPaint());
assertEquals(Color.RED, r1.getDownPaint());
assertFalse(r1.getUseOutlinePaint());
assertTrue(r1.getDrawVolume());
assertEquals(Color.gray, r1.getVolumePaint());
assertEquals(-1.0, r1.getCandleWidth(), EPSILON);
}
/**
* Check that the equals() method distinguishes all fields.
*/
@Test
public void testEquals() {
CandlestickRenderer r1 = new CandlestickRenderer();
CandlestickRenderer r2 = new CandlestickRenderer();
assertEquals(r1, r2);
// upPaint
r1.setUpPaint(new GradientPaint(1.0f, 2.0f, Color.RED, 3.0f, 4.0f,
Color.WHITE));
assertFalse(r1.equals(r2));
r2.setUpPaint(new GradientPaint(1.0f, 2.0f, Color.RED, 3.0f, 4.0f,
Color.WHITE));
assertEquals(r1, r2);
// downPaint
r1.setDownPaint(new GradientPaint(5.0f, 6.0f, Color.green, 7.0f, 8.0f,
Color.yellow));
assertFalse(r1.equals(r2));
r2.setDownPaint(new GradientPaint(5.0f, 6.0f, Color.green, 7.0f, 8.0f,
Color.yellow));
assertEquals(r1, r2);
// drawVolume
r1.setDrawVolume(false);
assertFalse(r1.equals(r2));
r2.setDrawVolume(false);
assertEquals(r1, r2);
// candleWidth
r1.setCandleWidth(3.3);
assertFalse(r1.equals(r2));
r2.setCandleWidth(3.3);
assertEquals(r1, r2);
// maxCandleWidthInMilliseconds
r1.setMaxCandleWidthInMilliseconds(123);
assertFalse(r1.equals(r2));
r2.setMaxCandleWidthInMilliseconds(123);
assertEquals(r1, r2);
// autoWidthMethod
r1.setAutoWidthMethod(CandlestickRenderer.WIDTHMETHOD_SMALLEST);
assertFalse(r1.equals(r2));
r2.setAutoWidthMethod(CandlestickRenderer.WIDTHMETHOD_SMALLEST);
assertEquals(r1, r2);
// autoWidthFactor
r1.setAutoWidthFactor(0.22);
assertFalse(r1.equals(r2));
r2.setAutoWidthFactor(0.22);
assertEquals(r1, r2);
// autoWidthGap
r1.setAutoWidthGap(1.1);
assertFalse(r1.equals(r2));
r2.setAutoWidthGap(1.1);
assertEquals(r1, r2);
r1.setUseOutlinePaint(true);
assertFalse(r1.equals(r2));
r2.setUseOutlinePaint(true);
assertEquals(r1, r2);
r1.setVolumePaint(Color.BLUE);
assertFalse(r1.equals(r2));
r2.setVolumePaint(Color.BLUE);
assertEquals(r1, r2);
}
/**
* Two objects that are equal are required to return the same hashCode.
*/
@Test
public void testHashcode() {
CandlestickRenderer r1 = new CandlestickRenderer();
CandlestickRenderer r2 = new CandlestickRenderer();
assertEquals(r1, r2);
int h1 = r1.hashCode();
int h2 = r2.hashCode();
assertEquals(h1, h2);
}
/**
* Confirm that cloning works.
*/
@Test
public void testCloning() throws CloneNotSupportedException {
CandlestickRenderer r1 = new CandlestickRenderer();
CandlestickRenderer r2 = (CandlestickRenderer) r1.clone();
assertNotSame(r1, r2);
assertSame(r1.getClass(), r2.getClass());
assertEquals(r1, r2);
}
/**
* Verify that this class implements {@link PublicCloneable}.
*/
@Test
public void testPublicCloneable() {
CandlestickRenderer r1 = new CandlestickRenderer();
assertTrue(r1 instanceof PublicCloneable);
}
/**
* Serialize an instance, restore it, and check for equality.
*/
@Test
public void testSerialization() throws IOException, ClassNotFoundException {
CandlestickRenderer r1 = new CandlestickRenderer();
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
ObjectOutput out = new ObjectOutputStream(buffer);
out.writeObject(r1);
out.close();
ObjectInput in = new ObjectInputStream(
new ByteArrayInputStream(buffer.toByteArray()));
CandlestickRenderer r2 = (CandlestickRenderer) in.readObject();
in.close();
assertEquals(r1, r2);
}
/**
* Some checks for the findRangeBounds() method.
*/
@Test
public void testFindRangeBounds() {
CandlestickRenderer renderer = new CandlestickRenderer();
OHLCDataItem item1 = new OHLCDataItem(new Date(1L), 2.0, 4.0, 1.0, 3.0,
100);
OHLCDataset dataset = new DefaultOHLCDataset("S1",
new OHLCDataItem[] {item1});
Range range = renderer.findRangeBounds(dataset);
assertEquals(new Range(1.0, 4.0), range);
OHLCDataItem item2 = new OHLCDataItem(new Date(1L), -1.0, 3.0, -1.0,
3.0, 100);
dataset = new DefaultOHLCDataset("S1", new OHLCDataItem[] {item1,
item2});
range = renderer.findRangeBounds(dataset);
assertEquals(new Range(-1.0, 4.0), range);
// try an empty dataset - should return a null range
dataset = new DefaultOHLCDataset("S1", new OHLCDataItem[] {});
range = renderer.findRangeBounds(dataset);
assertNull(range);
// try a null dataset - should return a null range
range = renderer.findRangeBounds(null);
assertNull(range);
}
}